Service difficulty report · Bulkhead Web · Boeing 7377H4

Difficulty date
August 18, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N912WN
Make and model
Boeing 7377H4
Aircraft serial
36621
Aircraft time
45,236 hours, 27,137 cycles
Part
Bulkhead Web
Condition
Cracked
Location
Bs 663
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

R/H WHEEL WELL VAPOR BARRIER CRACKED AT RBL 43' 5' FROM LOWER SECTION APPROX. 7' IN LENGTH ; / [01] MEASUREMENTS; [02] REMOVED DAMAGE PLIES; PREPARED DAMAGE AREA FOR REPAIR; STOP DRILL CRACKS; PERFORMED DRY OUT AS PER B737 SRM 51-70-04-2R-10 SECTION A;B;C AND 57-10-10-2R-2 SECTION 12; [03] VERIFIED STEPS 1 AND 2; [04] OK TO INSTALL REPAIR; [05] PERFORMED TAP TEST ON REPAIRED AREA OF R/H VAPOR BARRIER FOUND NO DELAMINATION AS PER B737 NDTM PART 1 CHAPTER 51-05-01 SECTION #5; [06] REPAIRED CRACK DAMAGE ON R/H VAPOR BARRIER AT RBL 43.5'AS PER B737 SRM 51-70-04-2R-10 SECTION D;E;F; [07] VERIFIED 5; [08] VERIFIED STEP 6<BR>OK TO PAINT; [09] APPLIED PRIMER & TOP COAT AT REPAIRED R/H VAPOR BARRIER WET; AS PER B737-7 AMM 51-21-72-370-804 & 51-21-73-370-804.; [10] VERIFIED STEP 9; [11] VERIFIED JOB CARD COMPLETION

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